S
M
T
W
T
F
S
30
79°
61°
31
79°
62°
1
80°
62°
2
78°
61°
3
78°
62°
4
79°
59°
5
77°
56°
6
68°
57°
7
69°
61°
8
75°
61°
9
78°
62°
10
78°
62°
11
79°
61°
12
79°
60°
13
78°
61°
14
70°
61°
15
76°
60°
16
76°
61°
17
77°
58°
18
69°
58°
19
72°
60°
20
76°
61°
21
77°
62°
22
79°
62°
23
79°
61°
24
78°
62°
25
77°
62°
26
78°
61°
27
77°
62°
28
69°
57°
29
75°
60°
30
77°
61°
1
77°
61°
2
76°
56°
3
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sao Paulo
Sao Paulo's September 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 56° and 62°. The average high for September is 76° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Sao Paulo. See also: October | November | December.
